Securing element



Nov. 27, 1923.

A. VOLMAN SECURING ELEMENT Filed April 8, 1922 AITORNEY through the nut. 45

Patented Nov. 27, 1923.

, 1,475,907 PATENT nmvomvrmv, 0F, BRInenaioN, NEW JERSEY.

SECURING ELEMENT:

' emira es file 422 1. 2, 2,- 15 1a No.

eral object of the invention beingto provide means whereby the nut can be moved,-with out rotatingit, upon its bOlt to apoint adiee nt he vqr er e e; a t y b ght into engagement with the threads of the bolt so that it can betightened as an ordinary nut.

Another object of the invention is to provide locking means for holding the threaded parts of the nut in engagement with the bolt.

This invention also consists in certain other 'features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view showing the invention in use.

Figure 2 is an end view of the nut.

Figure 3 is a view of the opposite end of the nut.

Figure 4 is a longitudinal sectional view through the nut.

Figure 5 is a side View with the nut members partly withdrawn.

Figure 6 is a sectional view of Figure 5.

Figure 7 is a transverse sectional view Figure 8 is a view of one of the nut members.

In these views 1 indicates the bolt, 2 the work-piece and 3 the body of the nut. This nut has its body provided with the tapered opening 4 for receiving the tapered stems of the nut members 5. Each nut member is provided with semi-circularrecesses upon its inner face, these grooves forming, when the nut members are in closed position,.the bore of the nut, eachnut member being threaded. as at 6, to engage notches 14 in the nut members.

15 tends to hold the levers in a position the threads of the bolt. The tapered porrins' ii-h he 1 a d u elhbe are so arranged that when the nut memb'ers are positioned in the body they will beheld n closed position sothat their grooves will form a boltreceiving opening. The ster'n of each nut member is preferably provided with 3 fiat vfaces, as shown andthe' opening the body is provided with similar faces t9 r these f e on he e m mb rs- The d i so previ d i Q 1' it '1' dinally extending tapered parts .7 for" en gaging tapered'grooves Sin the nut mem-- bers, these parts being-so formed that when thenut members aremoved outwardly they will be spread apart, thus .causing them'to move away from the bolt; The entire re moval of the nut members from the body is r I prevented' by the screws '9'11'1" 'the' body -en-. gaging the grooves 10 in the nut members.

The nut members are locked in position in the body by means of the locking levers 11 which are pivoted on the end of the body and which are provided with right angular extensions 12 which carry the dogs 13 which.

pass through holes in the body and engage A spring with the dogs engaging the notches.

It will thus be seen that by pressing upon the levers to move their dogs out of engagement with-the nut members, said nut members can be moved outwardly so that they will separate and thuls'disengage the bolt. This will permit the nut to be slid upon the bolt.

As soon as the nut has struck' the workpiece the nut members will slide into normal position and then by rotating the nut in the ordinary manner it may be tightened against the workpiece. The nut maybe removed by unscrewing it until the nut members' leave the workpiece and then by moving the-levers to release their dogs from the nut members. said nut members can and then the nut can be moved outwardly he slid off the bolt without rotating it.

Pine 16 are carried by one nut member and engage holes 17 in the other nut member for connecting the nut members together and thus causingzthem to move in unison.

It is thought from the foregoing description that the advantages and novel features" of my invention will be readily'apparent. I desire itto be understood that I may make changes in the construction and in the combination and arrangement of the i means for causing the nut members to separate when they are moved outwardly from the body,-m'eans for locking the nut members within the body, such locking means comprising a pair of pivoted levers, a dog carried by each lever and each nut member having a notch therein for receiving the dog. 7

2. A nut of the class described comprising a bodyxhaving a tapered opening therein, a pair of nut members having tapered stems for engaging said opening, a tapered projection in the-body and the nut members having tapered grooves therein for receiving the projection for causing the nut members to 'move' apart when they are drawn outwardly and means for locking the nut members in closed position.

3. nut of the class described comprising a body having a tapered opening therein, a pair of nut members having tapered stems for engaging said opening, a tapered projection in the body and the nut members having tapered groovestherein for receiving the projection for causing the nut stems for engaging said opening, a tapered projection in the body and the nut members having tapered grooves therein for re ceiving the projection for causingthenut members to move apart when they are drawn outwardly, means for locking the nut membersin closed position, means for limiting the outward movement of the nut members and means for movably connecting the nut members together.

In testimony whereof I affix my signature.

ANI VOLMAN. 

